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Updated: May 12, 2025
Walchia piniformis, Schloth. Permian, Saxony. Branch. b. Twig of the same. c. About 18 or 20 species of plants are known in the Permian rocks of England. None of them pass down into the Carboniferous series, but several genera, such as Alethopteris, Neuropteris, Walchia, and Ullmania, are common to the two groups.
As we turn over the pages of the geological chronicle, an extraordinary change comes over the vegetation of the earth. New, stunted, hardy trees make their appearance: the Walchia, a tree something like the low Araucarian conifers in the texture of its wood, and the Voltzia, the reputed ancestor of the cypresses.
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